Butterfly puzzle



FIG. 1 is a top perspective view of the butterfly puzzle showing my new design in a partially exploded condition;

FIG. 2 is a front elevation view thereof in a fully connected condition;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a butterfly puzzle, substantially as shown. 